At the Funfest mission selection screen, press Select, Down(3), Up(4), Select to set all available Funfest missions to the highest (hidden) difficulty. If you exit the mission selection screen, the difficulty will reset to its default value.

License

View all 300 Pokemon in the Unova Pokedex, then go to Nuvema Town, and speak with Professor Juniper to get the License, which will give you access to the Nature Preserve.

Oval Charm

Catch all 300 Pokemon in the Unova Pokedex, then go to Nuvema Town, and speak with Professor Juniper to get the Oval Charm, which increases the chance of Pokemon Eggs appearing at the Daycare on Route 3.

Shiny Charm

Catch all Pokemon in the National Pokedex, then go to Nuvema Town, and speak with Professor Juniper to get the Shiny Charm, which increases the chance of finding wild Shiny Pokemon to 1:2370.6.

Keys

Successfully complete the indicated task to get the corresponding key. The first two keys unlock difficulty options, and the other keys are required for capturing the Regi Legendary Pokemon.

Challenge Mode Key: Link to Pokemon Black 2.

Easy Mode Key: Defeat the Elite Four and Champion.

Iceberg Key: Capture Regirock.

Iron Key: Link to Pokemon Black 2.

Tower Key: Successfully complete Area 5 of the Black Tower.

Treehollow Key: Transfer from Pokemon Black 2.

Medals

Successfully complete the indicated task to unlock the corresponding medal at Mr. Medals in the Pokemon Center:

1,000 Wins: Defeat 1,000 Trainers in Black Tower/White Treehollow.

10 Followers: Ten fans gather at the reception after a Pokemon Musical.

10 People Funfest: Play an Entralink Funfest Mission with 10 people or more.

100 Passersby: Pass by 100 or more people with Tag Mode.

100 Victories: Defeat 100 Trainers in Black Tower/White Treehollow.

120 Boxed: Deposit 120 Pokemon into PC boxes.

20 Victories: Defeat 20 Trainers in Black Tower/White Treehollow.

30 Boxed: Deposit 30 Pokemon into PC boxes.

30 Passersby: Pass by 30 or more people with Tag Mode.

30 People Funfest: Play an Entralink Funfest Mission with 30 people or more.

360 Boxed: Deposit 360 Pokemon into PC boxes.

50 Victories: Defeat 50 Trainers in Black Tower/White Treehollow.

Ace of Hearts: Score 80 points or more in Feeling Check.

Ace Pilot: Travel using HM02 (Fly) a certain number of times.

Achiever Lv. 1: Clear 30 or more Funfest missions.

Achiever Lv. 2: Clear 100 or more Funfest missions.

All Types Champ: Win all the Type Expert Tournaments.

Archeology Lover: Have a Pokemon Fossil restored at the Nacrene Museum.

Around Unova: Visit every city and town in Unova.

Avenue of Fame: Develop Join Avenue and earn the right to name it.

Balloon Conquerer: Reach a total of 1,000 points in minigames on the Xtransceiver.

Balloon Expert: Reach a total of 500 points in minigames on the Xtransceiver.

Balloon Rookie: Reach a total of 50 points in minigames on the Xtransceiver.

Balloon Technician: Reach a total of 200 points in minigames on the Xtransceiver.

Battle Guru: Get all 55 other Battle medals.

Battle Learner: Battle 100 times.

Battle Repeater: Battle with 30 Trainers or more in Big Stadium and Small Court.

Battle Teacher: Battle 200 times.

Battle Veteran: Battle 400 times.

Battle Virtuoso: Battle 2,000 times.

Beginning of Memory: Use Memory Link and see an event for the first time.

Beginning Trader: Trade a Pokemon for the first time.

Best Minigamer: Play minigames on the Xtransceiver 100 times or more.

Big Star: Receive five good reviews in Pokemon Musicals.

Blockbuster Star: Reach 100 billion PokeDollars in box office sales.

Born to Battle: Have 100 or more Link Battles.

Boxes Maxed: Deposit 720 Pokemon into PC boxes.

BP Wealthy: Earn 100 BP.

Bridge Enthusiast: Visit all the bridges in Unova.

Broad Friendship: Register 10 or more Friend Codes in the Pal Pad.

Bug-type Catcher: Catch all Bug-type Pokemon in the Unova Pokédex.

Bug-type Champ: Win the Pokemon League with only Bug-type Pokemon.

Busy Saver: Save game 20 times.

Capturing Spree: Capture at least 50 Pokemon within one day.

Castelia Boss: Defeat the three Trainers on Back Street in Castelia City.

Comedic Movie Star: Successfully complete the Giant Woman Series.

Cop Movie Master: Successfully complete the Full Metal Cop Series.

Cruise Connoisseur: Take 10 or more cruises on the Royal Unova.

Cult Classic Star: Release all movies with twist endings.

Dark-type Catcher: Catch all Dark-type Pokemon in the Unova Pokédex.

Dark-type Champ: Win the Pokemon League with only Dark-type Pokemon.

Day-Care Faithful: Leave many Pokemon at the Pokemon Day Care on Route 3.

Deep Sleep Capture: Catch 50 or more Pokemon in the Entree Forest.

Diamond Dust: See the Diamond Dust.

Double Express: Defeat the Subway Boss on the Double Line.

Dowsing Beginner: Find a hidden item for the first time.

Dowsing Collector: Find 50 hidden items.

Dowsing Specialist: Find 10 hidden items.

Dowsing Wizard: Find 150 hidden items.

Dozing Capture: Catch a Pokemon in the Entree Forest for the first time.

Dragon-type Catcher: Catch all Dragon-type Pokemon in the Unova Pokédex.

Dragon-type Champ: Win the Pokemon League with only Dragon-type Pokemon.

Driftveil Mightiest: Win the Driftveil Tournament.

Easy Cycling: Ride a Bicycle 30 times.

Egg Beginner: Hatch a Pokemon Egg for the first time.

Egg Breeder: Hatch 10 Eggs or more.

Egg Elite: Hatch 50 Eggs or more.

Electric-type Catcher: Catch all Electric-type Pokemon in the Unova Pokédex.

Electric-type Champ: Win the Pokemon League with only Electric-type Pokemon.

Elite Guide: Guide 20 or more customers in Join Avenue.

Elite Medalist: Reach the "Elite" rank by collecting 100 medals.

Entertainment Master: Get all 74 other Entertainment medals.

Evolution Authority: Evolve Pokemon 100 times.

Evolution Expert: Evolve Pokemon 50 times.

Evolution Hopeful: Evolve a Pokemon for the first time.

Evolution Tech: Evolve Pokemon 10 times.

Exam Genius: Take 50 Battle Tests in the Battle Institute.

Exp. Millionaire: Earn 1,000,000 Exp. Points in a day.

Experienced Saver: Save game 50 times.

Extensive Friendship: Register five or more Friend Codes in the Pal Pad.

Extreme Developer: Create 50 shops in Join Avenue.

Face Board Memorial: Take a photo at the face board in Humilau City.

Fantasy Move Master: Successfully complete the Mystery Doors of the Magical Land Series.

Feeling Master: Play Feeling Check a certain number of times.

Ferris Wheel Fan: Meet a lot of people at the Ferris Wheel in Nimbasa City.

Fighting-type Catcher: Catch all Fighting-type Pokemon in the Unova Pokédex.

Fighting-type Champ: Win the Pokemon League with only Fighting-type Pokemon.

Fire-type Catcher: Catch all Fire-type Pokemon in the Unova Pokédex.

Fire-type Champ: Win the Pokemon League with only Fire-type Pokemon.

First Cult Classic: Release a movie with a twist ending for the first time.

First Friend: Register a Friend Code in the Pal Pad for the first time.

First Step: Participate in the Medal Rally.

Flying-type Catcher: Catch all Flying-type Pokemon in the Unova Pokédex.

Flying-type Champ: Win the Pokemon League with only Flying-type Pokemon.

Frequent Trader: Trade Pokemon 50 times.

Funfest Complete: Clear all Funfest missions.

Ghost Movie Master: Successfully complete the Ghost Eraser Series.

Ghost-type Catcher: Catch all Ghost-type Pokemon in the Unova Pokédex.

Ghost-type Champ: Win the Pokemon League with only Ghost-type Pokemon.

Global Connection: Register 32 Friend Codes in the Pal Pad.

Good Night: Use Game Sync to wake up a tucked-in Pokemon.

Good Rod Fisherman: Reel in 10 Pokemon.

Good Souvenir Getter: Receive 30 or more souvenirs from visitors in Join Avenue.

Graffiti Gazer: Read graffiti behind a sign.

Grass-type Catcher: Catch all Grass-type Pokemon in the Unova Pokédex.

Grass-type Champ: Win the Pokemon League with only Grass-type Pokemon.

Great Adventurer: Get all 97 other Adventure medals.

Great Customer: Spend 100,000 PokeDollars or more.

Great Souvenir Getter: Receive 50 or more souvenirs from visitors in Join Avenue.

Great Trade-Up: Trade Pokemon 100 times.

Ground-type Catcher: Catch all Ground-type Pokemon in the Unova Pokédex.

Ground-type Champ: Win the Pokemon League with only Ground-type Pokemon.